This wire resistance reference table shows the wire resistance for a range of wire length values, assuming a cross-section area of 1.5 mm² and a resistivity (Ω·mm²/m) of 0.0168. Every figure is computed with the same engine that powers our Wire Resistance Calculator, so the numbers are exact.
| Wire length | Wire resistance |
|---|---|
| 2.5 m | 0.02800 |
| 5 m | 0.05600 |
| 7.5 m | 0.08400 |
| 10 m | 0.11200 |
| 15 m | 0.16800 |
| 20 m | 0.22400 |
| 30 m | 0.33600 |
| 50 m | 0.56000 |
| 70 m | 0.78400 |
| 100 m | 1.12000 |
How to use this table
Find the row closest to your wire length and read across to the wire resistance. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Wire Resistance Calculator for a precise answer.
Need a value that is not in the table? — the Wire Resistance Calculator does it instantly, for free, with the formula and a worked example built in.
Related calculators
Continue exploring electrical calculators with these tools: Watts to Amps Calculator, kVA to kW Calculator, kWh to Joules Calculator, Resistance from Power Calculator, Parallel Resistor Calculator.